CVE-2012-4097: n/a vulnerability

CVE-2012-4097: The BGP implementation in Cisco NX-OS does not properly filter segment types in AS paths, which allows remo...

The BGP implementation in Cisco NX-OS does not properly filter segment types in AS paths, which allows remote attackers to cause a denial of service (BGP service reset) via a malformed UPDATE message, aka Bug ID CSCtn13043.

UnknownCVSS not scoredNot KEV-listedUpdatedSep 17, 2024, 01:46 UTC (UTC+00:00)

Security readout for executives and security teams

This issue can let a remote party disrupt BGP on affected Cisco NX-OS systems by sending a malformed routing update. The stated impact is a BGP service reset, which can affect routing availability. The bundle does not provide CVSS scoring, affected version detail, or evidence of active exploitation. Likely limited to Cisco NX-OS devices running BGP. Internet-facing or external-peer BGP sessions would carry more operational risk. Exact vulnerable versions are not provided in the bundle. Treat as an availability risk for networks relying on Cisco NX-OS BGP. Prioritize exposed routing infrastructure, but avoid emergency assumptions because the bundle lacks severity scoring and active exploitation evidence. Mitigation focus: Review Cisco's security notice for affected releases and official remediation.; Inventory Cisco NX-OS devices with BGP enabled.; Prioritize vendor-recommended updates or workarounds where applicable..

Prepared: Jun 14, 2026, 15:32 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Oct 14, 2013, 01:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

1Source links

CVSS and timeline data

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Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

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Weakness

CWE details

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